// 
// FigureCommandHandlerCollection.cs
//  
// Author:
//       Evan Briones <erbriones@gmail.com>
// 
// Copyright (c) 2010 Evan Briones
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using System.Collections;
using System.Collections.Generic;

using Mono.Addins;
using MonoDevelop.Diagram;

namespace MonoDevelop.Diagram.Components
{
	public class FigureCommandHandlerCollection : List<FigureCommandHandler>,
		IEnumerable<FigureCommandHandler>
	{		
		public FigureCommandHandlerCollection (string extensionPath)
		{
			ExtensionNodeEventHandler handler;
			
			handler = delegate (object o, ExtensionNodeEventArgs args) {
				var commandHandler = (FigureCommandHandler) args.ExtensionObject;
				
				if (args.Change == ExtensionChange.Add)
					Add (commandHandler);
				else
					Remove (commandHandler);
				
			};
			
			AddinManager.AddExtensionNodeHandler (extensionPath, handler);
		}
	}
}

